Trojan File Keeps Coming Back. What To Do?

A file auto downloaded from a site and I accidentally clicked on it instead of deleting it, since it's a one click to open on Chrome. Bitdefender picked up a "chrome.bat" file and quarantined it, but it keeps on reappearing. I've ran a couple full scans and nothing comes up for some kind of program running in the background.

I don't know what to do and don't want my system to be compromised.

The main annoyance with this, as bitdefender seems to be doing its job, to be honest is that I keep on getting notifications every few minutes about "threat detected" and it deselects my current window so I have to click back into it.

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